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PipeLLM exposes two kinds of public routes:
  • Native public routes on https://api.pipellm.ai
  • Converter routes under /openai, /anthropic, and /gemini
Use a native route only when your request already matches the target protocol. Use a converter route when you want to keep one SDK format and call models from another protocol family.

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Route Matrix

Request formatNative routeConverter routeNotes
OpenAI Chat Completions/v1/chat/completions/openai/v1/chat/completionsNative route for OpenAI-compatible platforms. Converter route for Anthropic or Gemini models with OpenAI format.
OpenAI Responses/v1/responsesNot available yetNative route for OpenAI-compatible platforms only. For cross-protocol calls today, use the OpenAI Chat Completions converter.
Anthropic Messages/v1/messages/anthropic/v1/messagesNative route for Anthropic-compatible platforms. Converter route for OpenAI or Gemini models with Anthropic format.
Gemini Generate Content/v1beta/models/{model}:generateContent/gemini/v1beta/models/{model}:generateContentNative route for Gemini platforms. Converter route for OpenAI or Anthropic models with Gemini format.
Gemini Stream Generate Content/v1beta/models/{model}:streamGenerateContent/gemini/v1beta/models/{model}:streamGenerateContentSame routing rule as generateContent.

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Protocol Guard Rules

  • /v1/chat/completions and /v1/responses accept OpenAI-compatible request bodies and route only to OpenAI-compatible platforms.
  • /v1/messages accepts Anthropic Messages request bodies and routes only to Anthropic-compatible platforms.
  • Gemini native endpoints accept Gemini request bodies and route only to Gemini platforms.
  • Converter-prefixed routes such as /openai/..., /anthropic/..., and /gemini/... are not affected by the native-route protocol guard.

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Common Patterns

GoalRoute to use
Keep OpenAI SDK, call Claudehttps://api.pipellm.ai/openai/v1/chat/completions
Keep OpenAI SDK, call Geminihttps://api.pipellm.ai/openai/v1/chat/completions
Keep Anthropic SDK, call GPThttps://api.pipellm.ai/anthropic/v1/messages
Keep Anthropic SDK, call Geminihttps://api.pipellm.ai/anthropic/v1/messages
Keep Gemini SDK, call GPThttps://api.pipellm.ai/gemini/v1beta/models/{model}:generateContent
Keep Gemini SDK, call Claudehttps://api.pipellm.ai/gemini/v1beta/models/{model}:generateContent

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Error Behavior

Protocol mismatches return a consistent JSON body: 
{
  "error": {
    "type": "invalid_request_error",
    "code": "400",
    "message": "..."
  }
}
The error message tells developers:
  • which request format was detected
  • why the native route is incompatible
  • which converter route or native route to use instead
  • which docs page to read next

API Reference Overview

Public routes and endpoint families

Converters Overview

Keep your SDK format and route across providers

OpenAI Responses

/v1/responses on PipeLLM